Why would buying an early metal detectors have been disappointing?

The main reason why buying an early metal detector would have been disappointing is because these detectors did not work very well. The first detectors were meant to help miners. However, they did not help much, as they were big, they were expensive and they used a lot of power, while not doing a very good job. However, metal detectors are much lighter, efficient, and cheaper nowadays.

yup its an addiction

the answer is b to the question